A wide variety of organisms are classified as vertebrates, including mammals, birds, fish, amphibians, and reptiles. Vertebrates share many physical characteristics.
Which of the following is true about vertebrates?
OA.
Most vertebrates are born cold blooded then later become warm-blooded.
OB. Vertebrates are neither warm-blooded nor cold blooded.
C. Some vertebrates are warm-blooded while others are cold blooded.
OD. Most vertebrates are born warm-blooded then later become cold blooded.